Passive Components Blog
No Result
View All Result
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    Samsung Electro-Mechanics High Capacitance MLCCs for ADAS SoCs

    Murata Expands its Automotive Common Mode Choke Coils to 150C and High Current Capability

    Bourns Releases New Current Transformer

    Skeleton Releases GrapheneGPU to Reduce AI Energy Consumption by 44% and Boosts Power by 40%

    VINATech Expands Aluminum Capacitor Portfolio with Acquisition of Enesol

    binder Offers Wide Range of M12 Panel Mount Connectors

    Bourns Releases New Shielded Power Inductors for DDR5

    Supercapacitors Benefits in Industrial Valve Fail-Safe Control Systems

    Wk 21 Electronics Supply Chain Digest

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Circuit Protection Video
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Inter-Connect Video
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos

    Coupled Inductors Circuit Model and Examples of its Applications

    Inductor Resonances and its Impact to EMI

    Highly Reliable Flex Rigid PCBs, Würth Elektronik Webinar

    Causes of Oscillations in Flyback Converters

    How to design a 60W Flyback Transformer

    Modeling and Simulation of Leakage Inductance

    Power Inductor Considerations for AI High Power Computing – Vishay Video

    Coupled Inductors in Multiphase Boost Converters

    VPG Demonstrates Precision Resistor in Cryogenic Conditions

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Who is Who
  • Events
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    Samsung Electro-Mechanics High Capacitance MLCCs for ADAS SoCs

    Murata Expands its Automotive Common Mode Choke Coils to 150C and High Current Capability

    Bourns Releases New Current Transformer

    Skeleton Releases GrapheneGPU to Reduce AI Energy Consumption by 44% and Boosts Power by 40%

    VINATech Expands Aluminum Capacitor Portfolio with Acquisition of Enesol

    binder Offers Wide Range of M12 Panel Mount Connectors

    Bourns Releases New Shielded Power Inductors for DDR5

    Supercapacitors Benefits in Industrial Valve Fail-Safe Control Systems

    Wk 21 Electronics Supply Chain Digest

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Circuit Protection Video
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Inter-Connect Video
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos

    Coupled Inductors Circuit Model and Examples of its Applications

    Inductor Resonances and its Impact to EMI

    Highly Reliable Flex Rigid PCBs, Würth Elektronik Webinar

    Causes of Oscillations in Flyback Converters

    How to design a 60W Flyback Transformer

    Modeling and Simulation of Leakage Inductance

    Power Inductor Considerations for AI High Power Computing – Vishay Video

    Coupled Inductors in Multiphase Boost Converters

    VPG Demonstrates Precision Resistor in Cryogenic Conditions

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Who is Who
  • Events
No Result
View All Result
Passive Components Blog
No Result
View All Result

Mitigating Vacuum RF Multipaction in Space Systems

9.2.2023
Reading Time: 3 mins read
A A

This Knowles Precision Devices’s article explains vacuum RF multipaction issues in space systems and how to mitigate this.

When developing mission-critical space applications such as low Earth orbit (LEO) satellites or equipment designed for Mars missions, there are special considerations you must make if you will be operating your RF circuits in a vacuum. This is because when pressure in the vacuum is below 10-2 Torr, a potentially catastrophic phenomenon in RF circuits called multipaction is possible.

RelatedPosts

Supercapacitors Benefits in Industrial Valve Fail-Safe Control Systems

RF Inductors Key Characteristics and Applications

Stacked Ceramic Capacitors Improve Efficiency in Power and RF Applications

What Is Multipaction and What Causes It?

In short, multipaction is an electron resonance effect that can occur when free electrons present in a vacuum accelerate and impact a surface. It is common to have free electrons present in an RF device either between conducting surfaces or if the electrons are ejected from the surface dielectric through the strength of the RF field. These free electrons can then be subjected to acceleration by the RF field.

If nothing interferes with the accelerated free electron, such as gas atoms, this electron can travel quite far to impact a surface. This impact can cause a secondary electron emission from that surface, adding to the free electrons present and potentially creating an avalanche-like effect in the device as the newly emitted electrons can be accelerated and impact the surface as well. This can cause the number of accelerated electrons in the field to grow exponentially.

Why is Multipaction a Problem for Space Systems?

In RF space systems, multipaction can cause RF signal loss and distortion and it can increase the noise figure or bit-error-rate. These issues can cause excess RF power to reflect or dissipate, leading to damage to RF components or subsystems that may cause a total communication failure for a satellite for example.

What Can I Do to Mitigate Multipaction During Design?

To reduce the probability of multipaction occurring, proper component and transmission-line design is needed. At Knowles Precision Devices, we have extensive space heritage and are well positioned to help you mitigate multipaction concerns during your design phase. In the past two decades, we have worked with organizations to design components for 13 separate Mars missions where each mission had severe multipaction concerns that we needed to mitigate.

Whenever we work with a customer designing a mission-critical space application, we help mitigate multipaction concerns upfront by discussing the mission risk profile and needs when it comes to resistance to multipaction. Once we have a better understanding of the application and potential risks, there are a variety of mitigation techniques we can employ. On the component design side, we can make changes such as constructing gas-filled laser-welded enclosures or coating surfaces in special materials as needed. We can also conduct extensive testing to catch multipaction at the component level. For example, to ensure the efficacy of the communications payload, we can collaborate closely with customers to conduct a thorough component investigation at high power in vacuum.

Related

Source: Knowles

Recent Posts

Coilcraft Extends Air Core RF Inductors

20.5.2025
17

Highly Reliable Flex Rigid PCBs, Würth Elektronik Webinar

15.5.2025
29

Vishay Releases Automotive SMD Thick Film Power Resistor for Enhanced Protection Against Short Transient Pulses

14.5.2025
15

Exxelia Power Film Capacitors Support Critical Systems Across Various Industries

13.5.2025
31

Modelithics Releases Components Library v25.0 for Keysight 

12.5.2025
23

Murata Releases 008004 High-Frequency SMD Chip Inductor

12.5.2025
31

Fischer Releases High Vibration Robust Ratchet Locking USB-C Connector System

9.5.2025
13

KYOCERA AVX Releases Compact High-Directivity Couplers

7.5.2025
28

Tariffs Crush Sales Sentiment in April 2025 ECST Results

5.5.2025
92

High-Density PCB Assemblies For Space Applications

2.5.2025
23

Upcoming Events

Jun 4
11:00 - 12:00 CEST

Würth Elektronik PCB Production in Asia

View Calendar

Popular Posts

  • Buck Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Boost Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • SEPIC Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • LLC Resonant Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Flyback Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Dual Active Bridge (DAB) Topology Explained

    0 shares
    Share 0 Tweet 0
  • Flying Capacitors Explained

    0 shares
    Share 0 Tweet 0
  • Ripple Current and its Effects on the Performance of Capacitors

    3 shares
    Share 3 Tweet 0
  • Filter Q Factor Explained

    0 shares
    Share 0 Tweet 0
  • What is a Dielectric Constant and DF of Plastic Materials?

    4 shares
    Share 4 Tweet 0

Newsletter Subscription

 

Passive Components Blog

© EPCI - Leading Passive Components Educational and Information Site

  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About

No Result
View All Result
  • Home
  • Knowledge Blog
  • Premium Suppliers

© EPCI - Leading Passive Components Educational and Information Site

This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.
Go to mobile version